Endgame in Oakland is an amazing store. I stayed with friends in Fremont back in 2008 and managed to squeeze in a trip to Endgame (much to my wifes disgust). I had a great time and the staff are uber helpful. I would suggest contacting them, I'm sure they could help you arrange something.
When my Malifaux bag arrives soon, I will finally have somewhere to sew on the Endgame patch I have (well i'll get the wife to sew it on)